
The AirTAC Airtac SAIF Series Standard Cylinder with Valve SAIF100X50-08B is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 50mm stroke and a built-in 4M310-08 5/2 solenoid valve — it switches itself from one coil signal, so no separate remote valve or extra plumbing is needed.
The AirTAC SAIF100X50-08B is a double-acting ISO 15552 profile cylinder delivering 3927N of push force at 0.5 MPa, paired directly with a built-in 4M310-08 5/2 solenoid valve. This specific SKU is configured with a DC24V terminal coil drawing 3.0W, featuring IP65 protection and a rapid 0.05s activation time. Because the valve manifold mounts directly to the cylinder using O10xO6.5 PU tubing, you eliminate remote plumbing and save panel space.
While the bare cylinder body rates to 1.0 MPa, the integrated valve limits the practical working pressure to 0.15-0.8 MPa. By default, the factory setting retracts the piston rod when the coil is energised, but you can reposition the valve to extend-when-energised. This self-switching design requires only one electrical signal to operate, making it highly effective for decentralized stations across large machines.
| Model | Airtac SAIF Series Standard Cylinder with Valve SAIF100X50-08B |
|---|---|
| Series | SAIF ISO 15552 cylinder with valve |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Acting type | Double acting, self-valved |
| Cylinder port | G1/2 |
| Rod thread | M20×1.5 |
| PU tube | Ø10 × Ø6.5 |
| Built-in valve | 4M310-08 (5/2) |
|---|---|
| Valve flow | 25.0 mm² (Cv 1.40) |
| Max frequency | 4 cycle/sec |
| Coil voltage | DC24V · DC 3.0 W |
| Electrical entry | Terminal · IP65 · B class |
| Response time | 0.05 s and below |
| Operating pressure | 0.15 – 0.8 MPa (valve limit) |
| Speed range | 30 – 800 mm/s |
The cylinder rates to 1.0 MPa but the built-in valve operates 0.15–0.8 MPa, so run the assembled SAIF at 0.15–0.8 MPa. Default: rod retracts when the coil is energised (reconfigurable to extend). Specs follow the official AirTAC SAIF datasheet. Port options: PT / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
Sized within the valve's 0.15–0.8 MPa range. Actual usable force is lower than theoretical due to friction and back-pressure.
| SAIF | ISO 15552 cylinder with built-in 4M valve. |
|---|---|
| 100×50 | Bore × stroke in mm. |
| -08 | Valve port 1/4" → 4M310-08. |
| B | Coil voltage DC24V. |
| I / (blank) | Terminal electrical entry. |
SAIF does not hold its load without air — the valve routes air, it is not a lock. For load-holding use a SAIL (lock) or BSAI (clamp-lock).
Eliminates the need for long air tubing runs back to a central valve island, driving the 3927N push force directly at the workstation.
Provides robust clamping for heavy machining operations using the integrated 4M310-08 valve, saving valuable machine envelope space.
Ideal for upgrading older machines where adding a remote valve manifold is impractical, offering a self-contained DC24V actuation solution.
Choose this 100mm bore when you need maximum thrust (up to 801kgf at 1.0 MPa) in a compact footprint; if 2805N at 0.5 MPa is sufficient, step down to the 63mm bore. A self-valved SAIF beats a separate cylinder and remote valve when wiring and air tubing to a central panel would be costly or complex. The 4M310-08 valve provides a Cv of 1.40 and operates at 4 cycles/sec, matching the 100mm bore's air demand.
For replacements, verify the 50mm stroke, 1/2 inch cylinder port, PT1/4 valve port, DC24V terminal coil, and standard carbon steel rod. Note that the 5/2 valve routes air but does not lock the load—use SAIL for pneumatic locking. Since the stroke is 50mm, no side-load guide is required.
Quick checklist
The 100mm bore generates 3927N of push force at 0.5 MPa and 7068N at 0.9 MPa. Although the cylinder body rates to 1.0 MPa, the built-in 4M310 valve limits the practical operating pressure to 0.15-0.8 MPa.
It uses a 4M310-08 5/2 solenoid valve with a Cv of 1.40. The factory setting retracts the rod when the DC24V coil is energised, but you can reposition the valve to extend-when-energised. It holds position via pilot pressure, not a spring.
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